I have five, all in working order and part of my rotation:
From left to right:
Geneva Cutlery Pyramid No. 7
Mastro Livi "New Grind" series
Robert Williams 8/8 Half Hollow
Thiers Issard Le Grelot
Birck and Zamminer "Reliance"
The first one I purchased was the "Reliance." The Geneva Cutlery followed in short order. The TI Le Grelot, Livi, and finally Williams then joined the rotation respectively.
I won't be accumulating at this rate or this lavishly in the new year.